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prohojiy [21]
4 years ago
15

How do you identify y=x-7 and 3x+y=5

Mathematics
1 answer:
Reptile [31]4 years ago
6 0
For the first one your answer would be y=7x because there is no number to subtract from it so it would automatically be 7x. And the second one will be 2y
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find 3 consecutive even integers such that the sum of the smaller 2 is 6 less than twice the largest one
saw5 [17]

n, n + 2, n + 4 - three consecutive even integers

n + 2 = 2(n + 4) - 6     |use distributive property

n + 2 = (2)(n) + (2)(4) - 6

n + 2 = 2n + 8 - 6

n + 2 = 2n + 2     |subtract 2 from both sides

n = 2n       |subtract 2n from both sides

-n = 0

n = 0

n + 2 = 0 + 2 = 2

n + 4 = 0 + 4 = 4

Answer: 0, 2, 4.

6 0
4 years ago
Write the decimal as a fraction or a mixed number in simplest form
natka813 [3]

-0.258 is a decimal number in which 2 is at the tenth place, 5 is at the hundredth place and 8 is at the thousandth place.

Therefore, the number in the fraction form is --\frac{258}{1000}

The fraction in the simplest form is --\frac{129}{500}

-0.312 is a decimal number and its fraction form is - -\frac{312}{1000}

The fraction in the simplest form is -\frac{78}{250} =-\frac{39}{125}

-2.32 is a decimal number and its fraction in the simplest form is

-2\frac{32}{100} =-2\frac{8}{25}

-1.64 is a decimal number and its mixed number in the simplest form is -1\frac{64}{100} =-1\frac{16}{25}

6.012 is a decimal number and the number in mixed number form is 6\frac{12}{1000}=6\frac{3}{250}

-12.405 is a decimal number and the number in mixed number form is

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6 0
3 years ago
Which expression is equivalent to 9x – 2x2 + 4x – x?
Artyom0805 [142]

Answer:

-2x^2+12x

Step-by-step explanation:

5 0
3 years ago
Can anybody help me out here it’s pre alegbra
lora16 [44]

Answer:

15 km

Step-by-step explanation:

We can use the Pythagorean theorem to solve

a^2 + b^2 = c^2

Draw a triangle with 12 for x direction and 9 for y direction

The distance is the connecting line which is the hypotenuse

12^2 + 9^2 = c^2

144+81 = c^2

225 = c^2

Taking the square root of each side

sqrt(225) = sqrt(c^2)

15 =c

5 0
3 years ago
Read 2 more answers
Jenna bought 280 tropical fish for a museum display. She bought 4 times as many tigerfish as parrotfish. How many of each type o
KengaRu [80]

Answer:

Parrot fish = 56

Tigerfish = 224

Step-by-step explanation:

4p + p = 280

5p = 280

p = 56

t = 4 (56) = 224

5 0
4 years ago
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